2017-2018最新人教版初中初三九年级英语第十三单元unit-13(11页)备课教案教学设计教学反思导学案 下载本文

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初中九年级初三英语全册

Unit 13 We are trying to save the earth!

总结人:汪老师

总结日期:2015年1月26日

第一部分Section A(1a ~ 2d)

I. I. 知识目标 类别 课时要点 1. litter v.乱扔;n. 垃圾; 2. ugly adj. 丑陋的; 3. advantage n. 优点; 4. cost v. 花费; 5. wooden adj. 木制的; 重点单词 6. bottom n. 底部; 7. fisherman n. 渔民; 8. coal n. 煤; 9. plastic adj. 塑料的; 10. takeaway n. 外卖食物; 11. bin n. 垃圾箱 1. at the bottom of the river在河床底部 2. be full of the rubbish充满了垃圾 3. throw litter into the river把垃圾扔入河中 4. play a part in cleaning it up 重点词组 尽一份力把它清理干净 5. land pollution土地污染 6. fill the air with black smoke 使空气中充满了黑烟 7. cut down air pollution减少空气污染 8. make a difference产生影响 1. Everyone in town should play a part in cleaning it up.城里的每个人都应当尽一份力把它清理干净。 2. The air is badly polluted because there are too many cars on the road these days.空气被严重污染因为如今路上的汽车太多了。 3. To cut down air pollution, we should take 重点句式 the bus or subway instead of driving.为了减少空气污染,我们应当乘坐公汽或地铁而不是开车。 4. I used to be able to see stars in the sky.我过去能在天空中看到星星。 5. The air has become really polluted around here. I’m getting very worried.这儿的空气真的已经被污染了,我非常担心。 II. 课堂环节

§自主学习方案

【自学自查】

根据汉语提示完成单词。 初中九年级初三英语全册

1. We should put up notice to stop from littering (乱扔)。

2. The teacher asked us to find a way to pick up the coins at the bottom (底部)of the bottle. 3. There are no more fish for fishermen (渔夫)to catch in the river. 4. We should take the paper bags to go shopping instead of the plastic (塑料)ones. 5. Could you please tell us another advantage(优点)of riding bike to work? §课堂导学方案 Step 1 情景导入(参考案例) 用多媒体给学生播放一些有关环境污染的图片或视频,然后询问学生对环境污染的看法和观点。 Teacher: What kinds of pollutions do you know? What do you feel about the pollution? Students: I think there are____. ①?? noise pollution② air pollution③water pollution? 环节说明:通过视频和课前的一个师生问答互动引入新课的话题 Step 2 完成教材1a-1c的任务 【操作案例】 1. 要求学生翻开课本P97,迅速阅读1a部分的内容。把方框中的单词按它们产生污染的类型写入相应的栏目中,并添加更多的单词。(1分钟) 2. 检查答案,先要求全班一起给出答案并检查讨论。然后要求2-3名同学给出自己的答案,并把收集的答案列举在黑板上。(3分钟) 3. 要求学生听第一遍录音,并根据听到的内容完成课本上1b表格中的句子。然后要求2-3名同学读出序号-读出所填单词-读出完整的句子(2分钟) 1. polluted, rubbish, fish 2. litter, rubbish 3. newspaper, stop, clean 4. 要求学生听第二遍录音,并逐句进行跟读。(2分钟) 5. 完成教材1c的任务,要求学生模仿1a内容,编造自己的关于污染的对话并进行对话练习。并邀请2-3对同学当堂进行演示。(3分钟) 6. 小结训练。要求学生在规定的时间内完成一个小练习。并请若干学生给出自己的答案。有错误的话及时解决纠正。(2分钟) 用所给词的适当形式填空。 初中九年级初三英语全册 1. There are many kinds of pollutions(pollute)in our daily life. 2. All of the students should take part in keeping (keep) our school clean and tidy. 3. Can you tell us your ideas for improving (improve) your spoken English. 4. W e should stop using the wooden (wood) chopsticks to protect the forest. 5. Their grandparents were fishermen (fisherman) near the sea before they moved to the town. 环节说明:通过学习1a,使学生对过去完成时态有所了解,并拓宽了思路;通过1b,锻炼学生的听力及抓取关键信息的能力;通过1c的训练锻炼学生的口头表达能力,同时巩固对本课内容的认识。 Step 3 完成教材2a-2c的任务 【操作案例】

1. 要求学生翻开课本P98。播放录音一遍,完成2a,2b的听力任务,然后个别检查,统一核对答案。(2分钟) 2. 要求学生听第二遍录音,并逐句进行跟读。(2分钟) 3. 听力内容巩固训练。要求学生根据所听到的内容完成下列各句。完成后要求若干学生给出自己的答案。以巩固对听力内容的了解。(4分钟) 1) The air is badly polluted because there are too much cars on the road these days. 2) Factories that burn coal also filled the air with a lot of black smoke. 3) There is also too much rubbish and waste. People litter things every day. 4) People are also littering in public like parks, this is turning beautiful places into ugly ones. 4. 大声朗读听力材料。(1分钟)

5. 放下听力材料,要求学生模仿听力内容,利用2a,2b的信息分角色练习Jason与 Susan的对话。然后邀请2-3对同学当堂演示。看哪一对的表现最佳。(5分钟) 6. 播放2d的对话录音,让学生跟读,模仿并理解大意。然后让学生分角色朗读并表演2d的对话。(5分钟) 环节说明:将听、说、读、写的任务结合起来不仅锻炼了学生的语言综合运用能力,还巩固了学生对目标语言的学习、识记和运用;同时,小组合作对话训练了同学们的合作意识和团队精神;对话的当堂演示使同学们有了学英语的成就感,张扬了个性。

§当堂评价方案(详见当堂训练部分) §备课资料包 a. 词汇包:

cost vt.1. 花费;价格为;值:

例句: It must cost a good deal to live here. 住在这里一定要花很多钱的 初中九年级初三英语全册

[拓展]:take, spend ,cost ,pay的用法都可以表示―花费‖,但用法却不尽相同。

1. spend的主语必须是人, 常用于以下结构:

(1) spend time /money on sth. 在……上花费时间(金钱)。例:I spent two hours on this maths problem. 这道数学题花了我两个小时。

(2) spend time /money (in) doing sth. 花费时间(金钱)做某事。例:They spent two years (in) building this bridge. 造这座桥花了他们两年时间。

(3)spend money for sth. 花钱买……。例:His money was spent for books. 他的钱用来买书了。

2. cost的主语是物或某种活动, 还可以表示―值‖, 常见用法如下:

(1)sth. costs (sb.) +金钱,某物花了(某人)多少钱。例:A new computer costs a lot of money. 买一台新电脑要花一大笔钱。

(2) (doing) sth. costs (sb.) +时间,某物(做某事)花了(某人)多少时间。例:Remembering these new words cost him a lot of time. 他花了大量时间才记住了这些单词。

注意:cost的过去式及过去分词都是cost,并且不能用于被动句。

3. take后面常跟双宾语, 常见用法有以下几种:

(1) It takes sb. +时间+to do sth. 做某事花了某人多少时间。例:It took them three years to build this road. 他们用了三年时间修完了这条路。

(2)doing sth. takes sb. +时间,做某事花了某人多少时间。例:Repairing this car took him the whole afternoon. 他花了一下午修车。 4. pay的基本用法是:

(1) pay (sb.) money for sth. 付钱(给某人)买……。例:I have to pay them 20 pounds for this room each month. 我每个月要付20英磅的房租。 (2)pay for sth. 付……的钱。例:I have to pay for the book lost. 我不得不赔丢失的书款。 (3)pay for sb. 替某人付钱。例:Don?蒺t worry!I'll pay for you. 别担心, 我会给你付钱的。

(4)pay sb. 付钱给某人。 例: They pay us every month.他们每月给我们报酬。

(5)pay money back 还钱。例:May I borrow 12 yuan from you? I'll pay it back next week. 你能借给我12块钱吗?下周还你。

(6)pay off one's money还清钱。 【课堂变式】

— How much is the ticket to Central Park?

—A one-way ticket ______ $40, and you can ______ another $20 for a round-trip. A. costs, pay B. cost, spend C. pay, spend D. spends, pay

【解析】考查动词辨析。cost―花费‖物作主语,spend―花

初中九年级初三英语全册

费‖人作主语,pay for付款, 人作主语,所以选择答案A。

b. 句式包:

To cut down air pollution, we should take the bus or subway instead of driving.为了减少空气污染,我们应当乘坐公汽或地铁而不是开车。

本句中To cut down air pollution是动词不定式作目的状语。动词不定式做目的状语时的用法 一、不定式和不定式短语作目的状语

不定式和不定式短语作目的状语,主要用来修饰动词,表示某一动作或状态的目的。为了使目的意义更加清楚或表示强调意义时,还可以在前面加 in order to 或 so as to。例如:

I've written it down in order not to forget. He shouted and waved so as to be noticed.

在句子中作谓语动词的状语的不定式或不定式短语,表示的是主语的目的,因此,其逻辑主语通常是句子的主语。比较:

1 —Why is Linlin practicing speaking English? To draw maps properly, you need a special pen.(正)

—_______ abroad for further study. To draw maps properly, a special pen is needed.(误)

A. Go B. Gone C. To go D. Goes 由 in order to 引导的目的状语,既可以置于句尾,也

【解析】考查非谓语动词。动词不定式表目的。故选C。 可以置于句首,而由 so as to 引导的目的状语,只能置

2. —I’m new here. 于句尾,而不能置于句首。比较:

—Don’t worry. I’ll do what I can ________ you. They started early in order to get there in time.(正)

A. help B. to help C. invite In order to get there in time, they started early.(正)

D. to invite They started early so as to get there in time.(正)

【解析】考查动词的辨析和非谓语动词的用法。由交 So as to get there in time, they started early.(误)

际情景可知此处表示―我将尽我能做的来帮助你。‖help二、不定式的复合结构作目的状语

的意思是―帮助‖,invite的意思是―邀请‖,此处使用动词 当不定式或不定式短语有自己的执行者时,要用不

不定式表示目的。故选B。 定式的复合结构(即在不定式或不定式短语之前加 for +

名词或宾格代词)作状语。例如:

He opened the door for the children to come in. 教学反思

第二部分Section A(3a ~ 3c)

She fetched several bottles which she placed on the counter for Harry to inspect.

三、目的状语从句与不定式的转换

英语中的目的状语从句,还可以变为不定式或不定式短语作状语,从而使句子在结构上得以简化。可分为两种情况:

1. 当目的状语从句中的主语与主句中的主语相同时,可以直接简化为不定式或不定式短语作状语。例如: We'll start early in order that/so that we may arrive in time. We'll start early in order to/so as to arrive in time.

2. 当目的状语从句中的主语与主句中的主语不相同时,要用动词不定式的复合结构作状语。例如:

I came early in order that you might read my report before the meeting.

I came early (in order) for you to read my report before the meeting. 【课堂变式】

初中九年级初三英语全册